Unobserved diversity, depletion and irreversibility The importance of subpopulations for management of cod stocks

@inproceedings{Sterner2007UnobservedDD,
  title={Unobserved diversity, depletion and irreversibility The importance of subpopulations for management of cod stocks},
  author={Thomas A. Sterner},
  year={2007}
}
Abstract Diversity is often associated with resilience but in this model, unobserved genetic or behavioral diversity can explain the collapse of supposedly regulated fish stocks such as cod. Recent studies have shown the existence of separate sub stocks of cod even at a very fine geographical scale. We show that modeling a group of distinct stocks as if it were one large stock will tend to over-estimate the growth and harvest potential. If quotas are based on such over-estimates, the unobserved… CONTINUE READING

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